825925917 has 4 divisors (see below), whose sum is σ = 1101234560. Its totient is φ = 550617276.

The previous prime is 825925879. The next prime is 825925921. The reversal of 825925917 is 719529528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 825925917 - 2¹² = 825921821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825920917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137654317 + ... + 137654322.

It is an arithmetic number, because the mean of its divisors is an integer number (275308640).

Almost surely, 2^825925917 is an apocalyptic number.

It is an amenable number.

825925917 is a deficient number, since it is larger than the sum of its proper divisors (275308643).

825925917 is a wasteful number, since it uses less digits than its factorization.

825925917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275308642.

The product of its digits is 453600, while the sum is 48.

The square root of 825925917 is about 28738.9268588791. The cubic root of 825925917 is about 938.2394680639.

The spelling of 825925917 in words is "eight hundred twenty-five million, nine hundred twenty-five thousand, nine hundred seventeen".